Started by Over Easy Solar in January 2022, vertical.solar was originally a research project started to develop data and knowledge necessary for the first commercial vertical solar rooftop product in the world: the light weight, vertically mounted bifacial VPV unit. Through the project, we have developed leading knowledge about vertical bifacial solar installations, ranging from solar panel design, mounting structure design, energy yield simulations, wind simulations, as well as testing and certification. We partner up with leading research partners in the field of PV; Institute for Energy Technology, Fraunhofer ISE and others.